Crystal Vision
Card edge operation
24
DEC102SUser ManualV1.0 05/11/03
Setting video standard and decoder options
The four-lever switch to the left of the card edge matrix display is used to configure the
main options in conjunction with on-board jumper links:
•
10 bit or 8 bit processing
•
525, 625 or automatic line standard selection
•
Composite or Y/C decoder input
•
VBI blanking ON/OFF
Lever
UP
DOWN
Lever 1
Automatic switching between 10 and 8
bit mode
10 or 8 bit mode selected manually using
jumper link J5
Lever 2
Automatic switching between 625 and
525 line standard
625 or 525 standard selected manually using
jumper link J3
Lever 3
Composite input
Y/C (S-video) input.
Lever 4
VBI data passed unprocessed on
luminance channel
VBI data blanked
Forcing the video standard
The video standard can be forced by using jumper link J3 in conjunction with lever 2 of
the four-lever switch on the card edge:
Link
Position
Function
J3
Towards edge connector
Manually select video standard when piano switch 2 is DOWN
Link to the rear – forces 625 line standard
Link to the front – forces 525 line standard
The location of jumper links is shown in the module configuration section of the Installation chapter.
Note:
Vertical Blanking Interval data is normally present in PAL on lines 7-22 and 319-335
and in NTSC on lines 10-20 and 273-282.